package com.zx.cloud.config;

import java.io.IOException;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.springframework.web.filter.OncePerRequestFilter;

import com.netflix.hystrix.strategy.concurrency.HystrixRequestContext;

public class HystrixRequestFilter extends OncePerRequestFilter {

	@Override
	protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
		HystrixRequestContext context = HystrixRequestContext.initializeContext();
		HttpContextHystrixRequestVariable.getInstance().set(request);
		try {
			filterChain.doFilter(request, response);
		} finally {
			context.shutdown();
		}
	}

}